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OSBM Bolt: Dyserth Road 
OSBM Bolt on concrete block, SW side of road, 12' ME from hedge junction [3GL]; OSBM BOLT CONCRETE BLOCK S SIDE DYSERTH RD 3.7M NE HEDGE JUNC.
Location
Grid reference: SJ 0449 8050.
Landranger 116: Denbigh & Colwyn Bay.
Structure: Concrete block.
Waypoint: OS0529.
Neighbouring Flush Brackets
The nearest fundamental bench mark is Dyserth,
2.00km to the east.
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Conwy to Dyserth levelling line. The surveyor's description was OSBM Bolt on concrete block, SW side of road, 12' ME from hedge junction.
Location
Grid reference: SJ 0449 8050.
Landranger 116: Denbigh & Colwyn Bay.
Structure: Concrete block.
Waypoint: OS0529.
Neighbouring Flush Brackets
| G2910 | Dyserth, Graig Fawr 1.41km to the east. |
| G2850 | Rhyl, Rhyd Wen Farm 1.48km to the northwest. |
| S6278 | Meliden, Church 1.88km to the east. |
| G2912 | Bodrhyddan Hall 1.90km to the south. |
| G2911 | Dyserth, Prengwyn 1.96km to the southeast. |
Third Geodetic Levelling, England & Wales (1950-68)
This bench mark was used during the Third geodetic levelling, England & Wales. It was included on the Conwy to Dyserth levelling line. The surveyor's description was OSBM Bolt on concrete block, SW side of road, 12' ME from hedge junction.
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